Spinocerebellar Degenerations Home>Conditions_and_Diseases>Neurological_Disorders>Spinal_Cord>Spinocerebellar Degenerations   Friedreich's Ataxia              Web Pages Marinesco-Sjogren Syndrome Information and a support group for families affected with this syndrome, a rare genetic disorder characterized by ataxia, cataracts, very small stature, and mental retardation.